Question 1

The layer of the eye where photoreceptors are located is the

Accepted Answer

A)  lens. 
B)  cornea. 
C)  pupil. 
D)  iris. 
E)  retina. 
A)  lens. 
B)  cornea. 
C)  pupil. 
D)  iris. 
E)  retina.

Question 2

The sense based on air vibrations is

Accepted Answer

A)  taste. 
B)  smell. 
C)  touch. 
D)  sight. 
E)  hearing. 
A)  taste. 
B)  smell. 
C)  touch. 
D)  sight. 
E)  hearing.

Question 3

Somatic pain is sensed in all of the following EXCEPT

Accepted Answer

A)  skin. 
B)  skeletal muscles. 
C)  joints. 
D)  tendons. 
E)  visceral organs. 
A)  skin. 
B)  skeletal muscles. 
C)  joints. 
D)  tendons. 
E)  visceral organs.

Question 4

In cases of farsightedness, the eye is

Accepted Answer

A)  longer than normal. 
B)  shorter than normal. 
C)  normal, but the lens focuses incorrectly. 
D)  normal, but the cornea is shaped incorrectly. 
E)  shorter than normal with an improperly focusing lens. 
A)  longer than normal. 
B)  shorter than normal. 
C)  normal, but the lens focuses incorrectly. 
D)  normal, but the cornea is shaped incorrectly. 
E)  shorter than normal with an improperly focusing lens.

Question 5

The tectorial membrane is

Accepted Answer

A)  connective tissue. 
B)  epithelial tissue. 
C)  muscle tissue. 
D)  nervous tissue. 
E)  a jellylike substance. 
A)  connective tissue. 
B)  epithelial tissue. 
C)  muscle tissue. 
D)  nervous tissue. 
E)  a jellylike substance.

Question 6

Differences in receptive fields in the retina

Accepted Answer

A)  help prevent the brain from being bombarded with confusing signals. 
B)  account for color differentiations. 
C)  account for acuity differences. 
D)  invert the images on the retina. 
E)  allow for perception of light intensity. 
A)  help prevent the brain from being bombarded with confusing signals. 
B)  account for color differentiations. 
C)  account for acuity differences. 
D)  invert the images on the retina. 
E)  allow for perception of light intensity.

Question 7

The Eustachian tube carries air from the middle ear to the

Accepted Answer

A)  larynx. 
B)  inner ear. 
C)  pharynx. 
D)  oval window. 
E)  round window. 
A)  larynx. 
B)  inner ear. 
C)  pharynx. 
D)  oval window. 
E)  round window.

Question 8

Rock concerts and shotgun blasts can produce sounds at a level of

Accepted Answer

A)  100 decibels. 
B)  130 decibels. 
C)  200 decibels. 
D)  250 decibels. 
E)  300 decibels. 
A)  100 decibels. 
B)  130 decibels. 
C)  200 decibels. 
D)  250 decibels. 
E)  300 decibels.

Question 9

Which of the following statements is false?

Accepted Answer

A)  Sensory receptors are able to detect specific stimuli only. 
B)  Sensation is an awareness of a change in external or internal conditions. 
C)  A stimulus will generate impulses that are different depending on where the signals are sent in the brain. 
D)  Information about a stimulus is coded in the quantity and frequency of action potentials sent to the brain. 
E)  Specific regions of the brain translate the information about the signal and convert it into a sensation. 
A)  Sensory receptors are able to detect specific stimuli only. 
B)  Sensation is an awareness of a change in external or internal conditions. 
C)  A stimulus will generate impulses that are different depending on where the signals are sent in the brain. 
D)  Information about a stimulus is coded in the quantity and frequency of action potentials sent to the brain. 
E)  Specific regions of the brain translate the information about the signal and convert it into a sensation.

Question 10

Olfactory receptors detect

Accepted Answer

A)  water-soluble substances. 
B)  volatile substances. 
C)  fat-soluble substances. 
D)  alcohol-soluble substances. 
E)  both a and b. 
A)  water-soluble substances. 
B)  volatile substances. 
C)  fat-soluble substances. 
D)  alcohol-soluble substances. 
E)  both a and b.

Question 11

Reshaping the cornea using lasers is often used to treat

Accepted Answer

A)  astigmatism. 
B)  retinoblastoma. 
C)  myopia. 
D)  glaucoma. 
E)  cataracts. 
A)  astigmatism. 
B)  retinoblastoma. 
C)  myopia. 
D)  glaucoma. 
E)  cataracts.

Question 12

Selecting the Exception Four of the five answers listed below are parts of the same sense organ. Select the exception.

Accepted Answer

A)  cochlea 
B)  cornea 
C)  sclera 
D)  choroid 
E)  fovea 
A)  cochlea 
B)  cornea 
C)  sclera 
D)  choroid 
E)  fovea

Question 13

The taste of meat, triggered by amino acids, is called

Accepted Answer

A)  origami. 
B)  umami 
C)  carnami. 
D)  tsunami. 
E)  miami. 
A)  origami. 
B)  umami 
C)  carnami. 
D)  tsunami. 
E)  miami.

Question 14

Selecting the Exception Four of the five answers listed below are parts of the inner ear. Select the exception.

Accepted Answer

A)  eardrum 
B)  oval window 
C)  scala tympani 
D)  basilar membrane 
E)  cochlea 
A)  eardrum 
B)  oval window 
C)  scala tympani 
D)  basilar membrane 
E)  cochlea

Question 15

Which of the following BEST defines a stimulus?

Accepted Answer

A)  an action potential in a neuron 
B)  depolarization of a nerve cell 
C)  energy that activates receptor endings of a sensory neuron 
D)  the recording of an event in the brain 
E)  response to a environmental event 
A)  an action potential in a neuron 
B)  depolarization of a nerve cell 
C)  energy that activates receptor endings of a sensory neuron 
D)  the recording of an event in the brain 
E)  response to a environmental event

Question 16

Vibrations are detected by

Accepted Answer

A)  Pacinian corpuscles. 
B)  Meissner's corpuscles. 
C)  Merkel's discs. 
D)  Ruffini endings. 
E)  free nerve endings. 
A)  Pacinian corpuscles. 
B)  Meissner's corpuscles. 
C)  Merkel's discs. 
D)  Ruffini endings. 
E)  free nerve endings.

Question 17

Light touch is detected by

Accepted Answer

A)  Pacinian corpuscles. 
B)  Meissner's corpuscles. 
C)  Merkel's discs. 
D)  Ruffini endings. 
E)  free nerve endings. 
A)  Pacinian corpuscles. 
B)  Meissner's corpuscles. 
C)  Merkel's discs. 
D)  Ruffini endings. 
E)  free nerve endings.

Question 18

Baroreceptors detect

Accepted Answer

A)  chemical substances. 
B)  pressure changes. 
C)  vibrational changes. 
D)  light wavelengths. 
E)  changes in solute concentration. 
A)  chemical substances. 
B)  pressure changes. 
C)  vibrational changes. 
D)  light wavelengths. 
E)  changes in solute concentration.

Question 19

The principal place in the human ear where sound waves are amplified by means of the vibrations of tiny bones is the

Accepted Answer

A)  pinna. 
B)  ear canal. 
C)  middle ear. 
D)  organ of Corti. 
E)  Tympanic Membrane. 
A)  pinna. 
B)  ear canal. 
C)  middle ear. 
D)  organ of Corti. 
E)  Tympanic Membrane.

Question 20

Because children have short Eustachian tubes, they are prone to

Accepted Answer

A)  motion sickness. 
B)  outer ear infections. 
C)  inner ear infections. 
D)  otitis media. 
E)  tinnitus. 
A)  motion sickness. 
B)  outer ear infections. 
C)  inner ear infections. 
D)  otitis media. 
E)  tinnitus.

Exam 14: Sensory Systems

The layer of the eye where photoreceptors are located is the

The sense based on air vibrations is

Somatic pain is sensed in all of the following EXCEPT

In cases of farsightedness, the eye is

The tectorial membrane is

Differences in receptive fields in the retina

The Eustachian tube carries air from the middle ear to the

Rock concerts and shotgun blasts can produce sounds at a level of

Which of the following statements is false?

Olfactory receptors detect

Reshaping the cornea using lasers is often used to treat

Selecting the Exception Four of the five answers listed below are parts of the same sense organ. Select the exception.

The taste of meat, triggered by amino acids, is called

Selecting the Exception Four of the five answers listed below are parts of the inner ear. Select the exception.

Which of the following BEST defines a stimulus?

Vibrations are detected by

Light touch is detected by

Baroreceptors detect

The principal place in the human ear where sound waves are amplified by means of the vibrations of tiny bones is the

Because children have short Eustachian tubes, they are prone to

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